Clock



Jan. 9, 1923.

L. A. HAMMARLUND.

CLOCK.

FILED MAR.25.1922.

IN VEN TOR A TTORNE YS' Jan. 9, 1923.

L. A.' HAMMARLUND.

CLOCK.

FILED MAR 25. 1922.

2 SHEETS-SHEET l'.

, IIIIIIIIIIIA IN V EN TOR A TTORNE YS Patented Jan. 9, 19223.

UNITED STATES 1,441,280 PATENT oFFICE.

LLOYD A. HAMMARLUND, OF NEW YORK, N. Y., ASSIGNOR TO AUTOMOBILE CLOCK COMPANY, INC., F NEW YORK, N. Y., A CORPORATION OF DELAWARE.

CLOCK.

Application filed March 25, 1922. Serial N0. 546,750.

To all w 7mm t may concern Be it known that I, LLOYD A. HAMMAR- LUND, a citizen of the United States, and resident of the borough of Manhattan, in the city and State of New York, have invented a new and useful Improvement in Clocks, of which the following is a speciiication.

The object of my invention is to provide certain improvements in the construction, form and arrangement of the several parts of a clock and especially a clock designed for use in connection with automobiles, airships, boats, etc., where the clock is subjected to more or less exposure, to rough usage and to theft.

My improved clock more particularly includes a Xed outer casing and a rotatable and extensible inner casing located within the outer casing, means being provided wherebyl the clock spring may be wound, the hands may be set and the clock dial properly positioned, by rotary movements ot the inner casing.A

A practical embodiment oi my invention is represented in the accompanying drawin s, in which l iig. 1 represents the clock partly in side elevation and partly in section, attached to a suitable support. A

Fig. 2 represents a section on the line II-II, looking in the direction of the arrows.

Fig. 3 represents a section taken in the plane of the line III`III, looking in the :1.5 direction oi' the arrows.

Fig'. 1l represents a back view ol the clock, a portion ol the back oil'A the outer casing being broken away.

Fig. represents a front view o l the clock.

Fig'. (5 represents a face View of the inner casing front plate and clock movement frame.

Fig.

7 represents a side view of the same. Fig. 8 represents a back view of the same. Fig. 9 represents a detail'A section taken in the plane of the line IX-IX of Fig. 1, lookin .f in the direction of the arrows.

Fig. 10 represents a section taken in the plane of the line X-X of Fig. 9, looking in the direction of the arrows.

The outer cylindrical casing 1 is closed at its back end and open at its front end. This outer casing is provided with a peripheral external lateral iiange 2, provided with holes 3 for the reception oi? .tasten ing screws to xedly secure the outer casing to an instrument board or other suitable support 5. The closed back end of this outer casing 1 is provided with a centrally arranged hole 7, the

purpose oli' which will be hereinafter de-` scribed.

The inner cylindrical casing 8 has a rotary and sliding fit within the outer casing 1, the rear end of the inner casing being closed. The front end of the inner casing is provided with and closed by a front plate 12, having a forwardly extended peripheral flange 13. The heads of the screws 4 are located in the space between the iiange 2 of thc outer casing and the front plate 12 of the inner casing. This front plate is provided with rearwardly offset lugs 1A, by means of which the front plate is secured to the clock movement frame 15, through screws 16, which screws serve to draw the open front end of the inner casing 8 snugly into engagement with the front plate, it being noted that the rear end of the inner casing S is secured to the rear plate 17 of the clock movement frame by the screws 1S.

A rim 19 is provlded with an inwardly eX- tended flange 20 which fits over the flange 3 of the front plate, which serves to hold the unit 21 in position. Screws 22 engaging the rim 19 and flange 13, serve to secure the rim to the front plate. Between the window 21 and the front plate 12 I locate a combined dial. 23 and reflector ring 24, preferably made integral, the oifset securing lugs 1i struck rearwardly from the iront plate 12, serving to permit the dial to be secured against the lront face ot the viront plate by the fastening' serew:; 25. 'lhe usual hands 2o are located within the space between the dial and window, and are mounted as usual on the arbors 27, 28.

I have omitted practically all of the clock movement except the clock spring 29, which clock spring is provided with a tubular arbor 30 which projects through the rear end of the inner casing 8 and is screwed into the rotary member 31 of a clutch, which is located within the cup-shaped stationary member 32, secured by the screws 33 to the back end of the outer casing 1. Clutch rollers 34 serve to clutch the rotary member 31 to the fixed member 32 of the clutch', when the inner casing is rotated in one direction tor 'windingthe clock spring.

A spring 35 is interposed between the clock movement by a rotary movement of the inner casing in one direction, while unextended, manual means for positioning the clock dial by a rotary movement of the inner casing in the opposite direction, while unextended, and means for yieldingly holding the inner casing in its adjusted position.

14. In a clock, a fixed outer casing, a rotatable and extensible inner casing carrying the clock movement, means for setting the clock hands by a rotary movement of the inner casing in one direction, while extended, means f'or winding the clock movement by a rctary movement of the inner casing in the opposite direction, while unextended, manual means for positioning the clock dial by a rotary movement of the inner casing in the first named direction, while unextended, and means for yieldingly holding the inner casing in its adjusted position.

15. In a clock, a fixed outer casing, a rotatable and extensible inner casing carrying the clock movement, and hand controlling means carried by the inner casing, arrange-1V to be inter-locked with the outer casing by the extension of the inner casing, whereby the rotary movement of the inner casing, while extended, will set the hands.

16. In a clock, a fixed outer casing, a rotatable and extensible inner casing carrying the clock movement, the back off the outer casing having a hole therethrough, and a hand controlling arbor' projecting through the hole and having a portion arranged to be moved into interlocking engagement with tioning the clock dial by a rotary movement of the inner casing, while unextended, and coacting means between the inner and outer casings arranged to yieldingly hold the inner casing in its adjusted position.

18. In a clock, a. fixed outer casing, arotatable and extensible inner casing carrying the clock movement, means for positioning the clock dial by a rotary movement of the inner casing, while unextended, a spring catch carried by the outer casing, and a recess in the inner casing adapted to receive the catch for yieldingly holding the inner casing in its adjusted position.

19. In a clock, a fixed outer casing, a rotatable and extensible inner casing carrying the clock movement, and a clutch connection between between the outer casing and clock spring winding arbor, whereby the clock spring is wound by a rotary movement of the inner member.

20. In a clock, a fixed outer casing, a rotatable and extensible inner casing carrying the clock movement, a fixed clutch member carried by the outer casing, a rotary clutch member carried by the clock spring winding arbor, and an interposed clutch roller operative to causel the rotary movement of the inner casing to wind the clock spring.

21. In a clock, a fixed outer casing, an inner casing carrying the clock movement, a tront plate having rearwardly offset lugs secured to the clock movement to cover the open front of the inner casing, a combined dial and reflector ring secured to the face of the f'ront plate, said front plate having a forwardly extended peripheral flange, a window, and a rim engaging said flange for securing the window to the front plate.

In testimony, that I claim the foregoing as my invention, I have signed my name this 21st day of March 1922.

LLOYD A.. HAMMARLUND. 

